Horseshoe crabs are not crabs at all, but rather arachnids more closely related to spiders, according to scientists. Their blue blood is valuable for medical research, and they are nearly prehistoric in their lineage.
Horseshoe Crab Program and Tagging - DE Center for the Inland Bays
Science & Technology
Opinion When the Horseshoe Crabs Are Gone, We'll Be in Trouble - The New York Times
Citizen scientists help to track Delaware Bay's horseshoe crab population - WHYY
It's Spawning Season: Are Horseshoe Crabs Down For the Count? : NPR
Brigantine Wildlife Refuge – njwildbeauty
evolution Life Traces of the Georgia Coast
Significant changes to the horseshoe crab bleeding industry may protect wildlife : NPR
UGA partners on study to find sustainable methods of harvesting horseshoe crabs for the biomedical industry
A #JamesFarmPreserve - James Farm Ecological Preserve